Infrared receiver modules
KSM-70□ LM2E
The KSM-70□ LM2E consist of a PIN Photodiode of high
speed and a preamplifier IC in the package as an receiver
for Infrared remote control systems
DIMENSIONS
NOTE
PIN configuration
①
②
③
60 LM 70 LM
Vout
Vout
GND
Vcc
Vcc
GND
(Unit : mm)
Features
•
One mold small size package
•
Wide supply-voltage range : 2.7V to 5.5V
•
Shielded against electrical field disturbance
•
High immunity against ambient light disturbances
(Logic Controller Adaptation)
•
Available for carrier frequencies between 32.7KHz to 56.9KHz
•
TTL and CMOS compatible
Applications
•
Audio & Video Applications (TV, VTR, Audio, DVDP, CDP)
•
Home Appliances (Air conditioner, Computer, Camcoder)
•
Wireless Toys
•
Remote Control Equipment
Maximum Ratings
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Soldering Temperature
Symbol
Vcc
Topr
Tstg
Tsol
Ratings
6.0
-10 ~ +60
-20 ~ +75
260
(Max 5 sec)
[Ta=25℃ ]
Unit
V
℃
℃
℃
B.P.F Center Frequency
Model No.
KSM-701LM2E
KSM-702LM2E
KSM-703LM2E
KSM-704LM2E
KSM-705LM2E
B.P.F Center Frequency(KHz)
40.0
36.7
37.9
32.7
56.9
[Ta=25℃ , Vcc=5.0V(Vcc=3.0V)]
Typ.
Max.
Unit
-
5.5
V
1.2(1.0)
1.7
mA
940
-
nm
37.9
-
KHz
-
-
m
-
-
5.0(3.0)
-
V
0.1
600
0.5
700
700
V
us
us
Electro-Optical Characteristics
Parameter
Recommended Supply Voltage
Current Consumption
Peak Wavelength
*1
B.P.F Center Frequency
Transmission Distance
High level Output voltage
Low level Output voltage
*1
*1
*1
Symbol
Vcc
Icc
λ
p
fo
L
V
OH
V
OL
T
WH
T
WL
Condition
No signal input
Min.
2.7
0.5
-
-
12
9
4.5(2.8)
-
500
250±50lx
30cm over
the ray axis
0°
±30 °
High level Output Pulse Width *1
Low level Output Pulse Width *1
Output Form
Burst wave=600us
Period = 1.2ms
500
600
Active Low Output
*1. It specifies the maxmum distance between emitter and detector that the output wave form satisfies the standard under the conditions
below against the standard transmitter.
1) Measuring place
: Indoor without extreme reflection of light
high frequency lightning
3) Standard transmitter: Burst wave of standard transmitter shall be arranged to 50mVP-P under the measuring circuit
2) Ambient light source : Detecting surface illumination shall be irradiate 200±50lx under ordinary white fluorescence lamp without
1/2
Infrared receiver modules
KSM-70□LM2E
■
Measuring Method [Ta=25℃]
Output Pulse Width
Transmitter output
Carrier Frequency(fo)
Duty50 %
600us 600us
Standard Transmitter
Test Method of Transmission Distance
+5V
Standard
Tansmitter
10㏀
Vout
Transmitter
10㏀
10㎌
Vout
Arrival Distance : L
Remocon output pulse
OSC
GND
Vcc
Indicates horizontal and
vertical directions
T
WL
V
OH
V
OL
T
WH
25Cm
■
Typical Characteristics Curve [Ta=25℃]
Relative reception distance Vs.
Supply voltage
120
[%]
Relative reception distance Vs.
Ambient temperature
120
[%]
Relative reception distance
100
80
60
40
20
0
60˚
80˚
Radiant pattern
Relative reception distance
100
80
60
40
20
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
[V]
20
˚
40˚
0˚
-20
˚
-40˚
-60˚
-80˚
100
˚
0
50
100
50
100
-100˚
-10
0
10
20
30
40
50
60
[
℃
]
Supply voltage Vcc
Ambient temperature Ta
Relative Sensitivity [%]
■
Standard Application Circuit with R-C Decoupling Filter
R
Transmitter
Receiver
Module
Vcc
Vout
GND
*1 Recommended Circuit Description
1) Transmitter(IRED) drive current
: IFP = 300mA
P-P
~ 600mA
P-P
2) R-C Decoupling Filter with Lower Cut-off Frequency
: R=100Ω , C=47㎌
: 10kΩ over
⇒
fc = 1/2π RC = 33.9Hz
3) External pull-up resistor(optional)
Vcc
C
Rp
micom
GND
2/2
Analog electronics
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